Beginning with S/N

Transcription

1 E89M / MS PROOFER AND HOLDING CABINET Beginning with S/N SERVICE MANUAL October, 003 Manual P/N MOME89

2 CONTENTS This manual is designed to take a more in depth look at the E89M / MS prover and holding cabinets for the purpose of making the unit more understandable to service people. There are settings explained in this manual that should never require to be adjusted, but for completeness and those special cases where these settings are required to change, this manual gives a full explanation as to how, and what effects will result. SECTION PAGE NO.. SPECIFICATIONS INSTALLATION OPERATION Description of Controls 3. Explanation of Control System 4. MAINTENANCE Cleaning 4. Routine Procedures 5. TROUBLE SHOOTING GUIDE SERVICE PROCEDURES Fault Diagnosis 6. Access 6.3 Replacement 6.4 Adjustment / Calibration 7. ELECTRICAL SCHEMATICS ELECTRICAL WIRING DIAGRAMS SPARE PARTS ACCESSORIES / OPTIONS... 3 IMPORTANT: MAKING ALTERATIONS MAY VOID WARRANTIES AND APPROVALS. -3-

3 . PARTS DIAGRAM Main Assembly. Control Panel Assembly (E89M).3 Control Panel Assembly (E89MS).4 Door Assembly (E89M).5 Door Assembly (E89MS). SERVICE CONTACTS APPENDIX A. Auto Water Fill Kit Instructions

4 . SPECIFICATIONS MODEL: E89M (8 ) (3 ) WATER ENTRY ELECTRICAL ENTRY (4 ) 00 (8 ) (35 / ) 66.5 ( 5 /8 ) 55 (0 / 4 ) FRONT 5.5 ( ) 68 ( / 8 ) (4 5 / 8 ) (4 ) SIDE 70 (8 ) PLAN LEGEND - Electrical connection entry point - Water entry - 3/4 BSP (Autofill models only) ( / ID Hose adapter supplied) Dimensions shown in millimetres. Dimensions in inches shown in brackets. -5-

5 MODEL: E89MS (8 ) (3 ) WATER ENTRY ELECTRICAL ENTRY (35 / ) (4 ) 00 (8 ) 66.5 ( 5 /8 ) 55 (0 / 4 ) FRONT 5.5 ( ) 68 ( / 8 ) 7.5 (4 5 / 8 ) SIDE 60 (4 ) 70 (8 ) PLAN LEGEND - Electrical connection entry point - Water entry - 3/4 BSP (Autofill models only) ( / ID Hose adapter supplied) Dimensions shown in millimetres. Dimensions in inches shown in brackets. -6-

6 LOCATION To ensure correct operation the following minimum installation clearances are to be adhered to: Rear 0mm / 0 Left-hand side 0mm / 0 Right-hand side 5mm / Provision must be allowed for the door opening. PROVER INTERNAL DIMENSIONS E89M / MS Width 460mm / 8 Height 675mm / 6 5 / 8 Depth 700mm / 7 5 / 8 Prover Volume 0.m³ / 7.8ft³ PROVER RACK/PAN SIZE CAPACITY Width 460mm / 8 or 405mm / 6 Depth 660mm / 6 RACK POSITIONS Spacing 74mm / 3 No. of rack positions: 8 ELECTRICAL SUPPLY SPECIFICATION OPTIONS 00-0 Volts A.C. 60 Hz,.5 A,.5kW 08-0 Volts A.C. 50/60 Hz, 6.5A,.45kW 0-40 Volts A.C. 50/60 Hz, 7. A,.7kW ELECTRICAL PLUG SPECIFICATION REQUIREMENTS Australia 3-pin 50V 0A, AS/NZ 3 Canada 3-pin 5V 5A, NEMA 5-5 New Zealand 3-pin 50V 0A, AS/NZ 3 United Kingdom 3-pin 50V 3A fused, BS 363A United States 3-pin 5V 5A, NEMA 5-5 Other Countries 3-pin 50V 0A minimum, type to meet country standards WATER SUPPLY CONNECTION (Autofill Models Only) Max Pressure 550 kpa / 5.5 bar / 80 psi Min Pressure 00 kpa /.0 bar / 5 psi -7-

7 . INSTALLATION WARNING: THIS APPLIANCE MUST BE GROUNDED. WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY. It is most important that the prover is installed correctly and that the operation is correct before use. Installation shall comply with local electrical, health and safety requirements. BEFORE CONNECTION TO POWER SUPPLY Unpack and check unit for damage and report any damage to the carrier and dealer. Report any deficiencies to your dealer. Check that the available power supply is correct to that shown on the rating plate located on the right-hand side panel Volts A.C. 60 Hz,.5 A,.5kW 08-0 Volts A.C, 50/60 Hz, 6.5A,.45kW 0-40 Volts A.C. 50/60 Hz, 7.A,.7kW LOCATION To ensure correct operation the following minimum installation clearances are to be adhered to: Rear 0mm / 0 Left-hand side 0mm / 0 Right-hand side 5mm / Provision must be allowed for the door opening. ELECTRICAL CONNECTION E89 models are supplied with pre-fitted cords. Ensure unit is fitted with correct cord and plug for the installation (refer specifications section). Should changing of the cord be necessary, gain access to the electrical connection terminal block and strain relief clamp by removing the RH side panel. WATER CONNECTION (AUTOFILL MODELS ONLY) A connection elbow and sealing washer is supplied with this unit for direct connection of a ½ ID hose, and is recommended for easy installation and service. Connect water supply - Max inlet pressure 550kPa / 80psi. Turn on water supply to check for leaks. DOUBLE STACKING UNITS When it is desired to mount a Turbofan E3 convection oven on an E89, a double stacking kit must be used. Available from your dealer or Turbofan distributor (see Spare Parts). For stacking kit assembly instructions, refer Appendix B. RACK WIDTH POSITIONS The E89 prover has been designed to accept either 460mm (8 ) or 405mm (6 ) wide trays, / GN, / / GN trays or USA steam pans. The prover comes factory set for 460mm (8 ) trays, a rack spacer kit (Part no ) is required to change to 405mm (6 ) trays, Gastronorm pans or USA steam pans. RATING PLATE LOCATION The rating plate for the E89 prover is located at the bottom left corner of the RH side panel. L L Ground Phase Neutral RED BROWN BLACK BLACK BLUE WHITE GREEN GREEN/YELLOW WARNING: THIS APPLIANCE MUST BE GROUNDED / EARTHED Figure. Figure.3 Rating Plate -8-

8 3. OPERATION NOTE: A full user s operation manual is supplied with the product and can be used for further referencing of installation, operation and service. 3. DESCRIPTION OF CONTROLS - E89 PROVER / HOLDING CABINETS 89. FUNCTION OFF Unit is off. PROOF Unit is in proofing mode. (Indicator illuminates when switched to this position) HOLD Unit is in holding mode. (Indicator illuminates when switched to this position). THERMOSTAT Temperature range 0-85 C (3-85 F). Indicator illuminates when elements are cycling ON to maintain set temperature. Controls the prover air temperature. 3. HUMIDITY CONTROL to 5 Setting for butter based pastries (croissants, Danish pastries etc.) 5 to 8 Settings for yeast based breads and doughs. 3 HOLD PROOF Indicator illuminates when elements are cycling ON to maintain set temperature. (Controls the cabinet humidity in PROOF mode only) Manual Water Fill Models: Open the prover door. Fill the water trough at the filling spout, located at the front of the right hand side rack, to approximately 0mm / ¾ from the top of the trough. Remember to top up the water trough when the water level is below the halfway level in the trough and before the heating element is exposed. Auto Water Fill Models: Check that the water trough is filling, and the heating element is well covered. 4. THERMOMETER Indicates cabinet temperature. Dual Centigrade and Fahrenheit scale. CONDENSATION CHANNEL 4 Below the door there is a condensation channel and removable water collection drawer for the purpose of collecting door condensation run-off. -9-

9 3. EXPLANATION OF CONTROL SYSTEM The E89M/MS Prover/Holding Cabinets feature operator controls and an electrical circuit for which a direct understanding of their operation is required before carrying out any service work or fault repair work. The control device functions and electrical circuit are explained as follows: Function Switch A rotary switch on the control panel of these models functions as the power On/Off switch of the unit by isolating the Line phase supply. This switch is a 3 position, 4 pole, multi-function switch which in the Off position opens circuits all poles and isolates power from all control and heating systems. The switch should operate as illustrated below. P No function / not used. P Additional air heating element. P3 Humidity control thermostat. (Auto-fill models only - water solenoid, float switch, solenoid relay) P4 Air heating thermostat, cabinet lights, air circulation fan motor and control panel power indicator. P P P3 P4 HOLD PROOF PWR 3 4 P P HOLD OFF PROOF HOLD The air circulation fan, cabinet lights and control panel power indicator are On continuously on all E89 models when the function switch is in either of the PROOF or HOLD positions. The air circulation fan mounted at the top of the air delivery ducting ensures that the temperature and humidity throughout the cabinet is even by creating a low velocity air circulation system throughout the prover cabinet. Proof Mode In the Proof position the function switch poles P, P3 and P4 are closed, supplying power to the dry heat circuit, humidity circuit, cabinet lights and fan. P3 PROOF 3 P4 PWR 4 Figure 3.. P P HOLD P3 3 PROOF P4 PWR 4 The proofing system controls air temperature and humidity levels by way of an air heating element and a water tank heating element. The air heating element is positioned in the bottom of the air circulation ducting inside the cabinet and is directly controlled by the user-adjustable thermostat mounted to the control panel. The thermostat sensing bulb is mounted inside the cabinet to control the cabinet air temperature to the control panel setting. An indicator light on the control panel above this thermostat will illuminate when the thermostat has the air heating element operating and will cycle Off with the thermostat to indicate when the temperature reaches set point. The main thermostat is adjustable up to 85 C (85 F). The humidity thermostat mounted on the control panel controls the water tank heating element, which in turn maintains the water temperature between 0 C (68 F) and 85 C (85 F). The evaporation of the water provides the cabinet humidity. The setting of the humidity thermostat (between - 8) controls the rate of water evaporation and therefore the level of humidity in the cabinet. An indicator light on the control panel above the humidity dial illuminates when the water tank element is On, and cycles Off when the thermostat switches the heating element Off to provide an indication of the humidity control. The sensing bulb of the humidity thermostat is mounted to the water tank heating element, which is immersed in the water tank. Should the water tank level drop below the heating element the humidity thermostat will cycle Off due to the sensing bulb reacting to the radiated heat off the heating element and will prevent the humidity water tank heating element burning out through excessive temperature. Hold Mode When the function switch is turned to the Hold position the function switch pole P3 opens to turn off the humidity control circuit, and pole P closes to connect an additional air heating element to the air temperature thermostat circuit. In this mode the air temperature thermostat operates as it does in the proofing mode, however, in this case there is an additional air heating element switched On and Off to provide extra heating power in this mode. The additional air heating element is also mounted in the air circulation ducting. E89M/MS Prover/Holding Cabinets are provided with a thermometer dial on the control panel to -0-

10 provide an indication of the cabinet temperature. The sensing bulb of this thermometer dial is mounted next to the sensing bulb of the main thermostat inside the cabinet. Auto water fill (option) E89 Auto-Water fill models provide for a mains cold water supply connection for automatic water tank filling and level control. Non Auto-Water fill models require the operator to manually fill the water tank and maintain the water tank level as the water evaporates through operation. On Auto-Water fill models an electric solenoid valve, float switch and relay maintain the water level in the humidity tank. The float switch is mounted at the rear of the water tank, and when the water is below the full level it open circuits, removing power from the coil. When deenergised, the relay removes power from the humidity thermostat circuit (therefore switching off the humidity element), and switches power to the water solenoid. As the water level reaches the full level position the float switch contact will close, re-energising the water solenoid relay, thereby closing the water solenoid valve and providing power back to the humidity thermostat. Accordingly this system will automatically maintain a full water tank whenever the function switch is in the PROOF position and the mains water supply is turned on. Ensuring that the function switch is in the Off position is necessary whenever removing the water tank for cleaning as when the water tank is removed the float switch drops and the water solenoid valve will open (if the unit is on). Therefore as a precaution the mains water supply should also be turned Off whenever removing the water tank. --

11 WARNING: ALWAYS TURN THE POWER SUPPLY OFF BEFORE CLEANING. 4. MAINTENANCE WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY. 4. CLEANING IMPORTANT: THIS UNIT IS NOT WATER PROOF. DO NOT USE A WATER JET SPRAY TO CLEAN INTERIOR OR EXTERIOR OF THIS UNIT. CABINET A good quality stainless steel cleaning compound is recommended for cleaning the inside and outside of the cabinet. Harsh abrasive cleaners may damage the surface. SIDE RACKS To remove, take hold of the centre rung and lift towards the prover top. To replace, hold horizontally, engage in holes and push down. DOOR Wash with warm water and detergent solution using a soft sponge in straight lines up and down the door. Rinse with clean, warm water to remove detergent. Dry off. Clean door seal with warm water and detergent solution using a soft sponge when required. WATER TROUGH Open right hand side rack and remove trough. Clean with warm, soapy water. Rinse thoroughly. WATER TROUGH ELEMENT When the element becomes limed / scaled, remove water trough and clean. Replace water trough and half fill with white vinegar or acetic acid then fill to the normal level with water. Switch unit on. Set humidity control to 8 and run for approximately 30 minutes. Remove trough and clean element with damp cloth when cooled. Wash out trough and refit. This procedure is recommended to be done once a week. Frequency of cleaning the element may be increased or decreased depending on the lime depositing on the element. --

12 4. ROUTINE PROCEDURES PROCEDURE INTERVAL WET ELEMENT Remove scaling (refer section 4.). As required DOOR SEALS Inspect door seal on door inside for wear and tear. 6 months DOOR HINGES Check for wear. months ELEMENTS Check that elements are operating. months -3-

13 5. TROUBLE SHOOTING WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY. THE UNIT DOES NOT OPERATE / START FAULT POSSIBLE CAUSE REMEDY The unit is not plugged into the wall socket. Plug in. FAN DOES NOT OPERATE PROVER CABINET LIGHT(S) DO NOT OPERATE NO DRY HEAT NO DRY HEAT TEMPERATURE CONTROL NO HUMIDITY NO HUMIDITY CONTROL The mains isolating switch on the wall, circuit breaker or fuses are off at the power board. The power switch on the unit is off. Incorrect electrical supply. (Refer fault diagnosis 6..) Power / Function switch faulty. (Refer fault diagnosis 6..) Fan motor faulty. (Refer fault diagnosis 6..) Bulb blown. Thermostat faulty. (Refer fault diagnosis 6..3) Element blown. (Refer fault diagnosis 6..3) Thermostat faulty. (Refer fault diagnosis 6..4) Unit is in HOLD mode. No water in trough. Humidity thermostat faulty. (Refer fault diagnosis 6..5) Power / Function switch faulty. (Refer fault diagnosis 6..5) Water tank element blown. (Refer fault diagnosis 6..5) Humidity thermostat faulty. (Refer fault diagnosis 6..6) Turn on. Turn switch on. Indicator will illuminate. Ensure electrical supply correct. Replace. (Refer service section 6.3.) Replace. (Refer service section 6.3.9) Replace bulb (Refer service section 6.3.8) Replace. (Refer service section 6.3.3) Replace. (Refer service section 6.3.6) Replace. (Refer service section 6.3.3) Humidity only operates when unit is in PROOF mode. Manual Fill: Fill trough with water. Auto fill: (refer fault: Auto-fill not filling) Replace. (Refer service section 6.3.4) Replace. (Refer service section 6.3.) Replace. (Refer service section 6.3.6) Replace. (Refer service section 6.3.4) -4-

14 FAULT POSSIBLE CAUSE REMEDY SLOW RECOVERY Overloading of product. Reduce batch size. NO HEATING / HUMIDITY INDICATOR DOOR DOES NOT CLOSE AUTOFILL WATER NOT FILLING (Autofill models only) AUTOFILL WATER OVERFLOWING (Autofill models only) Door opened unnecessarily. Incorrect electrical supply. (Refer fault diagnosis 6..) Door seals deteriorated. Fan motor faulty. (Refer fault diagnosis 6..) Power / Function faulty ( HOLD mode only) (Refer fault diagnosis 6..) Element faulty ( HOLD mode only) (Refer fault diagnosis 6..3) Indicator faulty. (Refer fault diagnosis 6..7) Tray in way of door. Interference with door. Hinges damaged. Water supply not turned on. Blockage in water supply. Water connection filter blocked. Water solenoid faulty. (Refer fault diagnosis 6..9) Water level float switch faulty. (Refer fault diagnosis 6..9) Solenoid relay faulty. (Refer fault diagnosis 6..9) Water level float switch faulty. (Refer fault diagnosis 6..9) Solenoid relay faulty. (Refer fault diagnosis 6..9) Water tank not fitted. Solenoid valve dirty. Do not open unnecessarily. Check supply voltage is as per rating plate voltage. Inspect and replace. Replace. (Refer service section 6.3.9) Replace. (Refer service section 6.3.) Replace. (Refer service section 6.3.6) Replace. (Refer service section 6.3.) Correctly position tray in rack. Inspect and repair. Replace. (Refer service section 6.3.3) Turn water supply on. Disconnect water supply and inspect. Clean filter. (Refer service section 6.3.7) Replace. (Refer service section 6.3.6) Replace. (Refer service section 6.3.8) Replace. (Refer service section 6.3.5) Replace. (Refer service section 6.3.8) Replace. (Refer service section 6.3.5) Fit water tank. Clean solenoid valve. -5-

15 6. SERVICE PROCEDURES WARNING: ENSURE POWER SUPPLY IS SWITCHED OFF BEFORE SERVICING. WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY. SECTION PAGE NO. 6. FAULT DIAGNOSIS Unit Does Not Operate / Start Fan Does Not Operate No Heat No Dry Heat Temperature Control No Humidity No Humidity Control No Heating / Humidity Indicator Autofill Not Filling or Overflowing (Autofill Models Only) ACCESS Control Panel Right Hand Side Panel Left Hand Side Panel Control Panel (Rear) REPLACEMENT Indicator Light Power /Function Switch Thermostat Humidity Thermostat Thermometer Dry Element Wet Element Light Bulb / Glass Fan Door Handle Door Catch Magnet Door Door Glass Door Pivot bushes Relay Water Solenoid - Autofill models only Water Solenoid Cleaning Float Switch - Autofill models only ADJUSTMENT / CALIBRATION Door Reversal

16 6. FAULT DIAGNOSIS 6.. UNIT DOES NOT OPERATE / START Incorrect electrical supply Check that the supply voltage across phase and neutral (L and L) terminals of terminal block is correct as per the voltage stated on the unit s electrical rating plate. If incorrect, check electrical connection of supply cord, and/or check electrical supply. Power / Function switch on unit faulty Ensure that power is isolated from the unit. Check for continuity through the switch terminals in each of the settings. The switch should operate as illustrated below. If not then the switch is faulty - replace. P P P wiring. Check power at terminal. If there is no power then the thermostat is faulty - replace. Alternatively the thermostat indicator light should illuminate when thermostat set to max. Element blown With thermostat on and heating check voltage across dry element terminals. If there is no voltage check wiring. If voltage is correct, element is faulty - replace. To test element, disconnect terminals and check resistance across element. Resistances; 08-40V models 7 Ω ±3.6 Ω 0-0V models 0.5 Ω ± Ω 6..4 NO DRY HEAT TEMPERATURE CONTROL P P3 P4 HOLD PROOF PWR 3 4 P HOLD P3 PROOF 3 P4 PWR 4 P HOLD P3 3 PROOF P4 PWR 4 Thermostat faulty With thermostat in off position (fully counterclockwise), the heating indicator should be off. If not, then the thermostat is faulty - replace. OFF PROOF HOLD If checks are ok and the unit still does not operate, check the unit s wiring and/or re-diagnose exact fault with unit and refer to trouble-shooting guide. 6.. FAN DOES NOT OPERATE Fan motor faulty Check the supply voltage across motor terminals. If there is no voltage with function switch on then check the electrical connections of supply wiring. If voltage is correct then isolate unit from power, then check the oven fan for free rotation. Remove any obstruction. If fan is free to spin and the voltage supply is correct, then the motor is faulty replace NO HEAT Figure 6.. Thermostat faulty With cold prover, set thermostat to maximum position. Check power to terminal of top thermostat. If there is no power then check 6..5 NO HUMIDITY Humidity thermostat faulty With cold proofer, set humidity to 8. Check power to terminal of bottom (humidity) thermostat. If there is no voltage then check wiring. Check power at terminal. If there is no power then the thermostat is faulty - replace. Alternatively the humidity thermostat indicator light should illuminate when thermostat set to max. Power / Function switch faulty Ensure that power is isolated from the unit. Check for continuity through the switch terminals as illustrated below. If not then the switch is faulty - replace. P P HOLD P3 PROOF 3 P4 PWR 4 PROOF Figure

17 Element blown With humidity thermostat on and heating check voltage across wet element terminals. If there is no voltage check wiring. If voltage is correct, element is faulty - replace. To test element, disconnect terminals and check resistance across element. Resistances; 08-40V models 7 Ω ±3.6 Ω 0-0V models 0.5 Ω ± Ω 6..6 NO HUMIDITY CONTROL Humidity thermostat faulty Switch the prover on and set the humidity to 4. Check that the humidity thermostat cycles on / off, and using a suitable probe measure the temperature of the water in the trough. The water temperature should be 50 C/0 F ± 0%. If the temperature continues to rise above this then the humidity thermostat is faulty - replace. Water level float switch faulty To check correct operation of float switch remove the float switch wire connections from terminal 8 and terminal 5 on relay. With full water tank (float switch in raised position) float switch should be closed circuit. With empty water tank (float switch in lower position) float switch should be open circuit. If not, float switch is faulty replace. Solenoid relay faulty E89 auto-fill models are fitted with a pole change over relay, with its coil controlled by the float switch located in the water through / tank. When the water level is below the full position the coil is not energised, allowing the relay to supply power to the water solenoid. In this position the relay should have no power at terminals 3,4 and 8, but power at terminals,,5, and 6, NO HEATING / HUMIDITY INDICATOR Indicator faulty Check voltage across indicator terminals with controls on and appropriate thermostat turned on fully. If the voltage is correct and indicator is not illuminated then the indicator is faulty - replace. If there is no voltage then check wiring AUTOFILL NOT FILLING OR OVER FLOWING (AUTOFILL MODELS ONLY) Water solenoid faulty Empty water tank so float switch is in lowest position. With power ON check voltage across water solenoid coil terminals. If voltage is correct (refer electrical rating plate) but solenoid is not operating, disconnect electrical supply and remove wire connections from solenoid. Check solenoid coil windings resistance. Correct coil resistance: volt models 3650 Ω 0-0 volt models 00 Ω NOTE: If open circuit/high resistance, then the coil is faulty replace. If coil is correct, rewire and listen for audible solenoid click when power is supplied. If solenoid can be heard functioning and water supply is turned on but no water is entering tank, remove water solenoid and fittings and check for blockages. SOLENOID RELAY - TANK FILLING Figure 6..3 When the water level reaches the full position the float switch supply s power to the relay coil, which in turn cuts power to the water solenoid and supply s power to the humidity tank. In this position the relay should have no power at terminals and, but power at terminals 3,4,5,6, and SOLENOID RELAY - TANK FULL 6 5 Figure

18 6. ACCESS 6..4 CONTROL PANEL REAR 6.. CONTROL PANEL ) Remove two screws at bottom of control panel. Power Indicator Two Screws Power / Function Switch Figure 6.. ) Control panel can now be lowered and hinged on lower bracket. 3) When closing control panel ensure no wires are trapped. Dry Heating Indicator Dry Thermostat 6.. RH SIDE PANEL ) Undo the four screws holding the panel in place. ) Pull out at bottom, lower to remove. Wet Heating Indicator Wet Thermostat Four Screws Thermometer Figure LH SIDE PANEL ) Undo the four screws holding the panel in place. ) Pull out at bottom, lower to remove. Figure 6..4 Four Screws Figure

19 6.3 REPLACEMENT 6.3. INDICATOR LIGHT ) With control panel open (refer 6..) remove the wires from the back of the neon. Thermostat Phial Support Bracket Screw Neon Wires Figure Figure 6.3. ) From back push neon through front of panel rotating clockwise. 3) Push new neon in from front of panel, and reconnect wires. 4) Withdraw old thermostat phial through hole under bracket in side of proofer. 5) Remove sleeving from old thermostat and fit to replacement thermostat. Fibreglass Sleeve 6.3. POWER / FUNCTION SWITCH ) Remove knob off front of power switch. ) Open control panel (refer 6..). 3) Remove two screws, remove switch. Two Screws Figure Thermostat Phial 6) Undo two screws securing thermostat to control panel and remove. Figure 6.3. Two Screws 4) Mount new switch and transfer wires from the old switch THERMOSTAT ) Pull knob off front of thermostat. ) Open control panel (refer 6..). 3) With door open, remove right hand side rack. Undo thermostat support bracket screw and remove bracket. Figure ) Attach new thermostat to control panel and transfer wires to new thermostat. 8) Re-assemble in reverse order. 9) Ensure hole in prover wall through which the thermostat capillary passes is re-sealed with RTV silicone sealant. -0-

20 6.3.4 HUMIDITY THERMOSTAT ) Pull knob off front of thermostat ) Open control panel (refer 6..). 3) With door open, remove right hand side rack and water trough. Undo humidity thermostat support bracket screw and remove bracket. Remove clip holding capillary to element. Capillary Clip Humidity Support Bracket Screw 7) Attach new thermostat to control panel, and transfer wires to new thermostat. 8) Re-assemble in reverse order. 9) Ensure hole in prover wall through which the thermostat capillary passes is re-sealed with RTV silicone sealant THERMOMETER ) Open control panel (refer 6..) ) With door open, remove right hand side rack (Lift off supports, and remove). 3) Undo thermometer support bracket screw and remove bracket. Figure ) Remove thermostat support bracket in side wall, withdraw old humidity thermostat phial through hole under the bracket. 5) Remove plastic sleeving from old thermostat and fit to replacement thermostat. Support Bracket Screw Plastic Sleeve Thermostat Phial Figure ) Withdraw old thermometer phial through hole under bracket in side of cabinet. 5) Undo nuts securing thermometer to control panel and remove. Figure Two Nuts 6) Undo two screws securing thermostat to control panel and remove. Two Screws Figure Figure ) Attach new thermometer to control panel. 7) Insert new thermometer phial through cabinet side and re-attach bracket. 8) Re-assemble in reverse order. 9) Ensure hole in prover wall through which the thermostat capillary passes is re-sealed with RTV silicone sealant. --

21 6.3.6 DRY ELEMENT ) Remove RH side panel (refer 6..), remove wires from element terminals, noting position. ) With door open, remove right hand side rack. Capillary Clip Support Bracket Screw Element cover Screws Figure 6.3. Element Screws Figure ) Unscrew the element from RH side (outside) of proofer. 3) Undo the two screws holding the element cover and remove cover. Proofing Element Terminals Figure ) Pull element carefully into prover to remove. 7) Replace and reassemble in reverse order. Hold Element Terminals Wet Element Ratings Volt Models 7 Ω ±3.6 Ω. 0-0 Volt Models 0.5 Ω ± Ω Figure ) Unscrew the element from RH side (outside) of prover. Pull element carefully to remove from inside of proofer. 5) Replace and re-assemble in reverse order. Dry Element Ratings Volt Models 7 Ω ±3.6 Ω. 0-0 Volt Models 0.5 Ω ± Ω LIGHT BULB / GLASS ) Open the prover door. ) Pull off lamp cover. Lamp Covers WET ELEMENT ) Remove RH side panel (refer 6..), and remove wires from (rear) element terminals. ) With door open, remove right hand side rack and water tank. 3) Remove thermostat support bracket screw (on element) and remove bracket. 4) Remove clip securing thermostat capillary to element. Figure ) Unscrew bulb out of fitting. 4) Screw in replacement bulb. 5) Refit lamp cover. --

22 6.3.9 FAN ) Remove RH side panel (refer 6..) ) Remove wires from fan motor, noting their positions. Fan Motor Terminals Fan Motor Bracket Screw 6.3. DOOR CATCH MAGNET ) Open prover door. ) Unscrew two screws securing magnet to door. 3) Replace magnet catch and re-assemble in reverse order. Door Magnet Two Screws Figure ) Remove fan motor bracket, one screw. 4) Slide fan assembly out of proofer. 5) Replace and re-assemble in reverse order. Figure DOOR HANDLE ) Open prover door. ) Remove two screws (E89M) or four screws (E89MS), remove handle DOOR ) Remove two screws from top of door holding hinge to door. Hinge Pivot (Two Screws) Hinge Body Two Screws (E89M) Two Screws top and bottom (E89MS) Figure Figure ) Slide door out at top and remove hinge pivot. 3) Lift door vertically off bottom hinge body (if sticky loosen bottom hinge body two screws). 4) Remove bottom hinge pivot from door. 5) Fit hinge pivots (top and bottom) to new door. 6) Re-assemble in reverse order. Figure ) Replace and re-assemble in reverse order DOOR GLASS ) Remove door as per steps one to three of section 6.3. ) Lay door face down on bench and remove door seal. -3-

23 3) Remove door inner (4 screws) and remove glass. 4) Clean glass and replace in reverse order. Ensure silicone seals have not been displaced from door outer and door inner RELAY - AUTOFILL MODELS ONLY ) Remove RH side panel (refer 6..). ) Remove two screws securing relay to bracket. Door Outer Door Inner Two Screws Figure Door Glass 4 Screws Figure 6.3. Door Seal 3) Secure new relay to bracket. 4) Transfer wires from old relay to new relay. 5) Replace RH side panel. 5) Reassemble and refit door in reverse order DOOR PIVOT BUSHES ) Remove door as per steps one to three of section ) Remove two screws (top and bottom) holding hinge body to proofer WATER SOLENOID - AUTOFILL MODELS ONLY ) Remove RH side panel (refer 6..). ) Remove wires from solenoid, noting their positions. Solenoid Wires Two screws Two Screws Figure Brass Fitting Figure ) Door pivot bush can now be removed and replaced. 3) Remove brass fitting from solenoid. 4) Remove two screws securing solenoid to bracket, and withdraw solenoid. 5) Secure new solenoid with screws, and re-assemble in reverse order. Door Pivot Bush Figure ) Re-assemble in reverse order. -4-

24 6.3.7 WATER SOLENOID CLEANING ) Disconnect water supply from the water solenoid. ) Remove the sieve from the water valve assembly by pulling firmly away from the assembly with a pair of pliers. Float Switch Sleeve Float Switch Nut Float Switch Figure Sieve Figure ) Clean the sieve, removing all dirt and grime. 4) Replace the sieve and reconnect the water supply. 8) Remove the float switch from the bracket, replace, and reassemble in reverse order. NOTE: Ensure float switch bracket is RTV silicone sealed to prevent steam leakage FLOAT SWITCH - AUTOFILL MODELS ONLY ) Remove RH side panel (refer 6..). ) Remove float switch wires from relay, noting their positions. 3) Remove brass fitting from rear of float switch. 4) Remove RH side rack and water trough from inside proofer. Two Nuts Figure Brass Fitting 5) Undo two nuts from outside cabinet, and two screws inside cabinet securing float switch bracket to proofer. 6) Remove float switch assembly from proofer. NOTE: The float switch bracket has been silicone sealed, so it may therefore be necessary to cut around the bracket with a sharp knife to assist with removal. Clean off all remaining silicone. 7) Remove the float switch sleeve, and undo the nut securing the float switch to the bracket. -5-

25 6.4 ADJUSTMENT / CALIBRATION 6.4. DOOR REVERSAL ) Whilst supporting door remove bottom hinge body (two screws) and remove door. Figure 6.4. Two Screws Hinge Body ) Remove top hinge body (two screws). 3) Remove four cover screws covering alternate hinge holes. Refit cover screws on opposite side. When changing to LH hinged door. Remove magnet plate and transfer to opposite side. Important: Redundant plate holes in LH side wall must be filled to stop steam ingress into wall cavity. 6) Fit bottom hinge body to top on opposite side, centre hinge on slots. 7) Whilst holding door in place fit remaining hinge body to bottom, securing door in position. 8) Remove door handle (E89M only) (refer 6.3.0) and refit in the higher setting, using the extra screw position. 9) Ensure door seal is removed and refitted with join at bottom, centred over middle screw head when closed. 0) Refit LH side panel. Cover Screws Figure ) Remove LH side panel (refer 6..3). 5) When changing to RH hinged door. Remove LH magnet plate cover screws and clips from inside LH wall (Do not fit cover screws to old magnet position). Transfer door magnet plate to opposite side. Magnet Cover Screws Magnet Plate Figure

26 7. ELECTRICAL CIRCUIT SCHEMATIC 7. E89 Manual Water Fill Holding / Prover Cabinet FUNCTION SWITCH OPERATION 3 4 OFF P P P3 P4 3 4 HOLD P P P3 P4 3 4 PROOF P P P3 P4 FUNCTION SWITCH P P P3 3 P4 4 GROUND HOLD ELEMENT 600W 0V 800W 40V THERMOSTAT DRY ELEMENT 600W 0V 800W 40V PILOT LIGHT HUMIDITY THERMOSTAT HUMIDITY ELEMENT 600W 0V 800W 40V PILOT LIGHT POWER LIGHT x 5W 0V x 5W 40V LIGHT FAN HOLD PROOF PWR -7-

27 7. E89A Auto Water Fill Prover / Holding Cabinet N/C THERMOSTAT DRY ELEMENT LIGHT HOLD PROOF PWR GROUND FUNCTION SWITCH OPERATION 3 4 OFF P P P3 P4 3 4 HOLD P P P3 P4 3 4 PROOF P P P3 P4 FUNCTION SWITCH P P P3 3 P4 4 HOLD ELEMENT 600W 0V 800W 40V 600W 0V 800W 40V PILOT LIGHT HUMIDITY THERMOSTAT HUMIDITY ELEMENT 600W 0V 800W 40V POWER PILOT LIGHT LIGHT x 5W 0V x 5W 40V FAN RELAY WATER SOLENOID 7 8 FLOAT SWITCH -8-

28 8. E89 Manual Water Fill 8. ELECTRICAL WIRING DIAGRAM WET THERMOSTAT (30-85 C) 0 8 EARTH 7 MAINS TERMINAL BLOCK LIGHT LIGHT 4 P4 3 P3 THERMOSTAT (0-85 C) 3 4 SWITCH FUNCTION 3 4 DRY POWER INDICATOR 4 TEMP INDICATOR 5 HUMIDITY INDICATOR LIGHTS 5W 40V 5W 0V L N E FAN MOTOR WET ELEMENT 600W 0V 800W 40V WIRE MARKING "VIVID" PEN HOLD ELEMENT 600W 0V 800W 40V DRY 600W 0V ELEMENT 800W 40V EARTH POWER SUPPLY CORD P P -9-

29 8. E89A Auto Water Fill WATER SOLENOID FLOAT SWITCH FUNCTION SWITCH DRY 6 THERMOSTAT (0-85 C) 3 3 WET THERMOSTAT (30-85 C) EARTH WIRE MAKING "VIVID" PEN RELAY POWER INDICATOR MAINS TERMINAL BLOCK L N 4 P P3 P P 8 3 WET ELEMENT 7 3 HOLD ELEMENT DRY ELEMENT E EARTH POWER SUPPLY CORD 600W 0V 800W 40V 600W 0V 800W 40V 600W 0V 800W 40V 3 9 FAN MOTOR 3 LIGHT TEMP INDICATOR LIGHTS 5W 40V 5W 0V LIGHT WIRE MARKING "VIVID" PEN 3 HUMIDITY INDICATOR

30 9. SPARE PARTS REPLACEMENT PARTS LIST CONTROLS 0789 Switch - Function 0083 Knob - Function 0787 Thermostat (Temperature) 0457 Thermostat (Humidity) 0083 Knob - Temperature Thermostat 047 Knob - Humidity Thermostat Neon Indicator (40V) Neon Indicator (0V) 0788 Thermometer (Dual C & F) AUTO FILL OPTION 0085 Solenoid Valve (40V) 067 Solenoid Valve (0V) 0534 Relay (40V) 0535 Relay (0V) 050 Float Switch MOTOR & ELEMENTS Fan / Motor (40V) Fan / Motor (0V) 0400 Dry Element - 800W (40V) Dry Element - 600W (0V) 054 Wet Element - 800W (40V) 0530 Wet Element - 600W (0V) DOOR SA686 Door Assembly (E89M) SA687 Door Assembly (E89MS) 0468 Handle (E89M) 0559 Handle (E89MS) 0008 Hinge Top Assembly (Assembled with bush) Hinge Bottom Assembly (Assembled with bush) Hinge Bush Magnetic Catch Door Seal RACKS Rack RH Rack LH Rack Spacer Kit -3-

31 . PARTS DIAGRAMS. MAIN ASSEMBLY AUTO-FILL UNITS ONLY

32 Pos Part No. Description DOOR ASSEMBLY (REFER SECTION.4 &.5) DOOR SEAL HINGE TOP (ASSEMBLED WITH BUSH) HINGE BOTTOM (ASSEMBLED WITH BUSH) HINGE BUSH RACK SPACER (OPTIONAL EXTRA) RACK SPACER KIT LH RACK WA RH RACK WA CONTROL PANEL ASSEMBLY (REFER SECTION. &.3) HANGER STUD CATCH PLATE 0573 CONDENSATE DRAWER 0560 RACK STANDOFF CASTOR - SWIVEL DRY ELEMENT - 800W (40V) DRY ELEMENT - 600W (0V) CASTOR - RIGID LAMP HOLDER (c/w 5W 40V BULB) 048 BULB 4W (40V) 049 BULB 5W (5V) SIDE PANEL WATER TANK 9 07 CLAMP BOTTOM 075 CLAMP TOP WET ELEMENT - 800W (40V) 0530 WET ELEMENT - 600W (0V) 0938 SNAP BUSH 9mm TERMINAL BLOCK PANEL TERMINAL BLOCK INSULATOR CABLE CLAMP FAN MOTOR BRACKET MOTOR - (40V) MOTOR - (0V) Auto-fill units only SENSOR BRACKET 9 05 FLOAT SWITCH SLEEVE ADAPTOR & LOCKNUT REDUCING SOCKET 3/8 x / WATER TUBE WATER SOLENOID - (40V) 067 WATER SOLENOID - (0V) FLOAT SWITCH RELAY - (40V) 0535 RELAY - (0V) CONNECTOR 3/8 F x /4 COMPRESSION WATER SOLENOID BRACKET REAR SERVICE PANEL TOP -34-

33 . E89M CONTROL PANEL ASSEMBLY Pos Part No. Description Control panel (Blue Seal) Control panel (Bakbar) 0789 Selector switch Thermostat 0-85 C (Dry) Thermostat C (Wet) Pilot light (40V) Knob Knob (Humidity) Thermometer Control panel hook -35-

34 .3 E89MS CONTROL PANEL ASSEMBLY Pos Part No. Description 0558 Control panel Overlay C (Bakbar) Overlay C (Blue Seal) Overlay F (Moffat) Selector switch Thermostat 0-85 C (Dry) Thermostat C (Wet) Pilot light (0V) Pilot light (40V) Knob Knob (Humidity) Thermometer Control panel hook -36-

35 .4 E89M DOOR ASSEMBLY Pos Part No. Description 0008 HINGE TOP ASSEMBLY DOOR HANDLE BRACKET DOOR HANDLE DOOR OUTER POWDER COATED DOOR OUTER SEAL -.0m DOOR GLASS HINGE BOTTOM ASSEMBLY DOOR INNER FRAME MAGNETIC CATCH (INNER) MAGNET MOUNTING PLATE DOOR INNER FRAME SEAL -.00m DOOR SEAL -37-

36 .5 E89MS DOOR ASSEMBLY Pos Part No. Description 0559 DOOR HANDLE 0008 HINGE TOP ASSEMBLY DOOR OUTER DOOR OUTER SEAL -.0m DOOR GLASS DOOR INNER FRAME HINGE BOTTOM ASSEMBLY MAGNETIC CATCH (INNER) MAGNET MOUNTING PLATE DOOR INNER FRAME SEAL -.00m DOOR SEAL -38-

37 . SERVICE CONTACTS AUSTRALIA VICTORIA - MOFFAT PTY HEAD OFFICE AND MAIN WAREHOUSE 740 Springvale Road Tel (03) Mulgrave VIC 370 Fax (03) Spare Parts Department Free Call Fax (03) NEW SOUTH WALES - MOFFAT PTY Unit 8/4 James Ruse Drive Rosehill NSW 4 Spare Parts Free Call Fax (03) QUEENSLAND - MOFFAT PTY 30 Prosperity Place Geebung QLD 4034 Spare Parts Free Call Fax (03) SOUTH AUSTRALIA - MOFFAT PTY 8 Greenhill Rd Tel (08) Wayville SA 5034 Spare Parts Free Call WESTERN AUSTRALIA - MOFFAT PTY PO Box 689 Tel (08) Joondalup Business Centre WA 607 Spare Parts Free Call NATIONAL COVERAGE FOR 4 HOUR SERVICE OR MAINTENANCE DIAL FREE CALL (AUSTRALIA ONLY) CANADA Lessard Agencies Limited Tel (46) PO Box 97 Fax (46) Stn D Free Call Toronto, ONT M6P 3J5 NEW ZEALAND CHRISTCHURCH - MOFFAT LTD 6 Osborne St Free Call 0800 Moffat PO Box 0-00 ( ) Christchurch Spare Parts Tel (03) Fax (03) AUCKLAND - MOFFAT LTD 4 Waipuna Road Tel (09) Mt Wellington Fax (09) Auckland Spare Parts Free Call 0800 Moffat ( ) -39-

38 UNITED KINGDOM BLUESEAL LTD Units 6-7 Mount St Tel Business Park Fax Birmingham B7 5QU England UNITED STATES OF AMERICA MOFFAT INC Champion Blvd Tel P.O. Box 49 Fax Winston-Salem NC75 NATIONAL COVERAGE FOR SERVICE OR MAINTENANCE DIAL FREE CALL (USA ONLY) -40-

39 APPENDIX A. AUTOFILL KIT WARNING: ENSURE POWER SUPPLY IS SWITCHED OFF BEFORE COMMENCING. To convert a manual fill E89 prover to an auto-fill model, upgrade kit #05683 (40V) or #0575 (0V) needs to be installed as follows. A. PROVER PREPARATION ) Remove RH side panel (four screws), pull out at bottom and lower to remove. ) Remove water inlet blanking plate from rear of unit (four screws). (H). 3) Open RH side rack and remove water trough. 4) Remove blanking plate from inside prover (Two bolts). (A). Note: Blanking plate has been silicone sealed, therefore it maybe necessary to cut around the blanking plate with a sharp knife to assist with removal. Clean off all remaining silicone. B A B C E G H D F INTERNAL VIEW EXTERNAL VIEW B. KIT INSTALLATION ) Install the float switch bracket and assembly to inside of prover (B). Place a bead of RTV silicon sealant around back face of float switch bracket before securing to liner to ensure prover is sealed. ) Fit water solenoid and mounting bracket (F) to rear panel as shown (two screws). 3) Fit /4 copper tube (C) to outlet tube (B) and water solenoid (F) tighten all fittings. 4) Fit relay (D) to terminal block panel (two screws). 5) Connect wiring as per wiring diagram provided (refer overleaf). 6) Fit new rear service panel (G) to rear of prover. 7) Affix max water pressure label (E) to rear panel above water inlet. 8) Connect cold water supply (/ ID hose) to water connection elbow. Ensure leak free connection. Maximum water pressure is 550 kpa (80psi). 9) Fit elbow to water solenoid, ensure supplied washer is used. Turn water supply on and check for leaks, no water should be flowing into trough. C. RE-COMMISSIONING ) Re-fit RH side panel (four screws) ) Replace water trough. 3) Turn the power on, check that water trough fills, and stops filling approximately 0mm from the top of the tank. (Note: Humidity element will not heat until tank is filled to correct level). 4) Turn power supply off, empty water trough and repeat step 3 above. 5) Close RH side rack. -4-

40 4 3 WIRING DIAGRAM - AUTOFILL KIT Wiring changes in bold. WATER SOLENOID FLOAT SWITCH FUNCTION SWITCH DRY 6 THERMOSTAT (0-85 C) 3 3 WET THERMOSTAT (30-85 C) EARTH 9 WIRE MAKING "VIVID" PEN RELAY POWER INDICATOR WET ELEMENT HOLD ELEMENT DRY ELEMENT 7 35 MAINS TERMINAL BLOCK L N E EARTH POWER SUPPLY CORD 600W 0V 800W 40V 600W 0V 800W 40V 600W 0V 800W 40V P FAN MOTOR 3 LIGHT TEMP INDICATOR LIGHTS 5W 40V 5W 0V LIGHT WIRE MARKING "VIVID" PEN 3 HUMIDITY INDICATOR P3 P P -4-